Honestly, either way, one set of users will be in a pickle; the only real way to get around this is to write up how to purge cookies from:
1. The Forum
2. Their Browser

And wait for them to do so; you can't just wave a wand and do it for them, the only thing you can do is cater to the larger set of users.

I am a Web Development Contractor, I do not work for UBBCentral. I have provided free User to User Support since the beginning of these support forums.
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